Improvement in clevis



R. C. WHITEH-QUSE. Vehicle -Tongue Support.

No. 77,426. Patented April 28, 1868.

N-FEI'ERS. FHOTO UTNOGRAPHER, WASHINGTON. Dv C.

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Letters Patent No. 77,426, dated April- 28, 1868.

IMPROVEMENT IN GLEVIS.

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TO ALL WHOM IT MAY-CONCERN:

Be it known that I, RALPu O. WHITnnousn, ,o'f Boothbay, in the county of Lincoln, and' State of, M'uine, have invented a new and useful Improved Olevis; and I hereby declare the following to be a full, clear, and exact description thereof, which will enable othersto make and use my intention, reference being had to the accompanying drawings, forming part ofthis specification, in which- Figure 1 is a side view of my invention.

Figure 2, a. section of the same.

The object of my invention is to provide a simple and easy means of'tastening and unfustening cattle to and from carts and sleds.

To perform this operation when the common cle'vis is used, it is necessary to pass between the cattle, and this is always attended with inconveuience and loss oftime, and not unfrequently with danger. To avoid this, lmnkcmy clevis strictly automatic in-regard to attaching the oxen to the cart or sled, for it is only required to puss the tongue of the vehicle through the ring of the yoke, and back the cattle.

The drawings will be'ensily understood. ,a is the iron funnel or box-containmg the clevis, which passes" over the cart-tongue. b, the clevis, attached at the up'per end by a pivot, c, and passing through the box it, having also clip, 2', rcstingon the edge of the aperture in the clevis-box, to protect it from dropping lower than than necessary. This is'more distinctly shown in section in fig. 2, tlicdotted lines showing the swinging motion of the clevis. When the clevis is in the position shown in fig. 1, the strain of the drawing cattle does not come on the pin or pivot a, but upon the shoulder at of the box, (see fig. 2,) thus adding much to its strength and du mbility. The hold-hack is seen at e, and nsection of the ring is shown in fig. 2, in its place between the clevis and hold-back. Over the upper end of" the clevis isplnced a spiral spring, f, which passesihrough a hole in thetongue of the cart, and aids in keeping the olevis in position.

When the cattle are to be detached,a slight pressurc on the bottom of the clevis will pushit up, so as'to allow the ring to slip oil easily.

It is obvious the device would operate automatically without the intervention of the helixf, this simply adding security, and preventing the clevis from jolting up or down. :7 shows the loop to which the leaders are attached as common. p e

What I claim as my invention, and desire to secure by Letters Patent, is- The combination of the clevis-box a, having its pivoted clevis b, hold-back 0, either with or without the helix f, and to be attached as and for-the p'urposesset forth.

' .RALPH C. WHITEHOUSE.

Witnesses HENRY C. HOUSTON, WM. FRANK'SEAVEY. 

